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HelpTest Code LI Lithium, Serum
Performing Laboratory
North Ottawa Community Hospital
Specimen Requirements
Specimen Type: Serum
Container/Tube: Red top or serum gel
Specimen Volume: 1 mL
Collection Instructions: Avoid hemolysis and lipemia.
Additional Information: Date and time of last dose are required.
Reference Values
Therapeutic concentration: 0.6-1.2 mmol/L
Toxic concentration (automatic call-back): >2.0 mmol/L
Day(s) Test Set Up
Monday through Sunday
Methodology
Colorimetric
Specimen Transport Temperature
Ambient
Test Classification and CPT Coding
80178
Specimen Storage and Stability
| Specimen Type | Temperature | Time |
| Serum | Room Temp | < 8 hours |
| Refrigerated (primary) | <24 hours | |
| Frozen | <6 months |